26 Matching Results

Search Results

Advanced search parameters have been applied.

Long-Term Monitoring at the East and West Flower Garden Banks

Description: This report is a continuation of a similar study conducted from 1989-1991 when permanent stations were established to monitor the coral in the area to assess how environmental factors were affecting the reefs. Growth rates and declines were observed, as well as the rates of coral bleaching in the East and West Garden Banks to determine the state of the coral reefs. There are four appendices that present the data gathered.
Date: January 1997
Creator: Continental Shelf Associates, Inc.
Partner: UNT Libraries Government Documents Department

Long-Term Monitoring at the East and West Flower Garden Banks National Marine Sanctuary, 2002-2003: Final Report

Description: Final report of 2002-2003 monitoring of habitat and marine life of the East and West Flower Garden Banks National Marine Sanctuary in the Gulf of Mexico
Date: September 2006
Creator: Precht, William F.; Aronson, Richard B.; Deslarzes, Kenneth J. P.; Robbart, Martha L.; Murdoch, Thaddeus J. T.; Gelber, Adam et al.
Partner: UNT Libraries Government Documents Department

Coral Bleaching and Marine Protected Areas

Description: The report convenes a small working group of influential participants with significant experience in relevant coral reef research, monitoring, and marine protected area (MPA) management. Collectively, they embody comprehensive, direct knowledge of all major reef areas worldwide.
Date: September 2001
Creator: Salm, Rod & Coles, Steve L.
Partner: UNT Libraries

Seafloor Characteristics and Distribution Patterns of Lophelia pertusa and Other Sessile Megafauna at Two Upper-Slope Sites in the Northeaster Gulf of Mexico

Description: The tuft coral Lophelia pertusa is a deep-water coral that is very slow to develop and fragile, which makes recovery from any type of damage a very slow process. Current fishing practices and oil drilling are destructive processes that effect these coral systems. The goal of this paper is to learn more about the Lophelia pertusa and determine how best to protect these deep-water systems.
Date: June 2007
Creator: Schroeder, William W.
Partner: UNT Libraries Government Documents Department

Long-Term Monitoring at the East and West Flower Garden Banks National Marine Sanctuary, 1998-2001: Final Report

Description: An update of Texas A&M and Continental Shelf Associates studies designed to monitor the ongoing ecological health of the coral in the Flower Garden Banks (FGB). This is a deepwater, discontinuous reef that arcs along the outer continental shelf of the Gulf of Mexico and is the site of oil and gas operations that could potentially impact the integrity of the FGB.
Date: July 2003
Creator: Dokken, Quenton R.; MacDonald, Ian R.; Tunnell, John W., Jr.; Wade, Terry; Withers, Kim; Dilworth, Suzanne J. et al.
Partner: UNT Libraries Government Documents Department

Status of Coral Reef Fish Assemblages and Benthic Condition Around Guam: A Report Based on Underwater Visual Surveys in Guam and the Mariana Archipelago, April-June 2011

Description: The following report presents comprehensive data set on the coral reefs around Guam. The data is based on the reefs' fish and marine life and compare them to marine life and assemblages in areas around Guam open to fishing.
Date: August 2012
Creator: Williams, Ivor; Zamzow, Jill; Lino, Kevin; Ferguson, Marie & Donham, Emily
Partner: UNT Libraries Government Documents Department

Environmental Correlates to Genetic Variation in the Coral Reef Fish, Thalassoma bifasciatum

Description: Genetic variation was examined in bluehead wrasse, Thalassoma bifasciatum, populations along the Florida Keys. Interpretion of mean heterozygosity (H), percent polymorphic loci per population (P), genetic similarity, and F and G statistics demonstrated a clear division of wrasse populations into "northern" and "southern" groups. Correlation and cluster analyses indicated the six reefs can be grouped in a similar fashion based on genetic and environmental data. The conclusion from this analysis of wrasse populations in the Florida Keys is that substantial population subdivision occurs in response to differing selective pressures created by heterogeneous environments.
Date: December 1988
Creator: Pirkle, Michelle S. (Michelle Serpas)
Partner: UNT Libraries

Naked Stony Corals: Skeleton Loss in Scleractinia

Description: Hexacorallia includes the Scleractinia, or stony corals, characterized by having an external calcareous skeleton made of aragonite, and the Corallimorpharia, or mushroom corals, that lack such a skeleton. Although each group has traditionally been considered monophyletic, some molecular phylogenetic analyses have challenged this, suggesting that skeletal features are evolutionarily plastic, and reviving notions that the scleractinian skeleton may be ephemeral and that the group itself may be polyphyletic. Nevertheless, the most comprehensive phylogenetic study of Hexacorallia supported scleractinian monophyly (REF), and so this remains controversial. In order to resolve this contentious issue, we sequenced the complete mitochondrial genome sequences of nine scleractinians and four corallimorpharians and performed phylogenetic analysis that also included three outgroups (an octocoral and two sea anemones). Our data provide the first strong evidence that Scleractinia is paraphyletic and that the Corallimorpharia is derived from within the group, from which we conclude that skeletal loss has occurred in the latter group secondarily. It is possible that a driving force in such skeletal loss could be the high levels of CO{sub 2} in the ocean during the mid-Cretaceous, which would have impacted aragonite solubility. We estimate from molecular divergence measures that the Corallimorpharia arose in the mid-Cretaceous, approximately 87 million years ago (Ma), supporting this view. These data also permit us to date the origin of Scleractinia to 265 Ma, narrowing the gap between the group's phylogenetic origin and its earliest fossil record.
Date: December 1, 2005
Creator: Medina, Monica; Collins, Allen G.; Takaoka, Tori L.; Kuehl,Jennifer & Boore, Jeffrey L.
Partner: UNT Libraries Government Documents Department

Long-Term Monitoring at the East and West Flower Garden Banks National Marine Sanctuary, 1998-1999

Description: A continuation of the long-term monitoring of the Flower Garden Banks National Marine Sanctuary coral reef habitats, using a variety of methods to asses the changes in said reef communities.
Date: March 2002
Creator: Dokken, Quenton R.; MacDonald, Ian R.; Tunnell, John W., Jr.; Wade, Terry; Beaver, Carl R.; Childs, Susan A. et al.
Partner: UNT Libraries Government Documents Department

Project Summary: Long-Term Monitoring of the East and West Flower Garden Banks National Marine Sanctuary, 1998-1999

Description: Summary describing the work completed at Texas A&M-Corpus Christi, Center for Coastal Studies for long-term monitoring of the East and West Flower Garden Banks National Marine Sanctuary coral reef. It includes background information on the project funding and sponsorship, goals, methodology, and findings.
Date: December 2001
Creator: Texas A&M University-Corpus Christi. Center for Coastal Studies
Partner: UNT Libraries Government Documents Department

Rigs and Reefs: A Comparison of the Fish Communities at Two Artificial Reefs, a Production Platform, and a Natural Reef in the Northern Gulf of Mexico

Description: Final report comparing the fish populations of two artificial reefs, an operating oil and gas platform, and a natural reef in the northern Gulf of Mexico. Data regarding fish species, density of species, factors effecting biomass, and configuration of reef structures is gathered using visual survey and hydro-acoustics and then statistically analyzed.
Date: August 2003
Creator: Wilson, Charles A.; Pierce, Aaron & Miller, Mark W.
Partner: UNT Libraries Government Documents Department